P17: DARATUMUMAB (D) PLUS LENALIDOMIDE (R) AND DEXAMETHASONE (D) AS SALVAGE THERAPY FOR PATIENTS WITH REFRACTORY-RELAPSED MULTIPLE MYELOMA (RRMM): INITIAL FOLLOW-UP OF AN ITALIAN MULTICENTER RETROSPECTIVE CLINICAL EXPERIENCE BY “RETE EMATOLOGICA PUGLIESE” - G Mele; N Cascavilla; N Di Renzo; A Guarini; P Mazza; L Melillo; V Pavone; G Tarantini; P Curci; AP Falcone; C Germano; A Mele; et al. (HemaSphere, 2022)